1.8 遍历对象
通过foreach遍历对象
<?php
class Student {
public $name='tom';
protected $sex='男';
private $age=22;
public function show() {
foreach($this as $k=>$v) {
echo "{$k}-{$v}<br>";
}
}
}
//测试
$stu=new Student;
foreach($stu as $k=>$v) {
echo "{$k}-{$v}<br>";
}
echo '<hr>';
$stu->show();
结论：遍历到当前位置所能访问到属性
